Earplug



FIG. 1 is a perspective top view of an earplug showing my new design;

FIG. 2 is a perspective bottom view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view thereof.

CLAIM The ornamental design for an earplug, as shown and described.